Author Question: Explain the dawn phenomenon.. ... (Read 21 times)

cagreen833 · **on:** Aug 20, 2018

Explain the dawn phenomenon..

Question 2

A nutritionist advertises that she includes gene counseling in her services. She has clients submit a sample for genotyping certain disease-related genes. Based on current genomics technology and understanding, what is the problem with this service?
a. Depending on the tissue source, the genes of interest may not be present.
b. The technology is only available for identification and treatment of cardiovascular disease risk.
c. As genomic imprinting occurs at conception, diet counseling cannot influence the risk of certain diseases.
d. The nutrition advice provided will most likely not differ from general dietary recommendations.

Jody Vaughn · **Reply #1 on:** Aug 20, 2018

Answer to Question 1

The dawn phenomenon results from the effect of hormones involved in controlling circadian rhythms. Cortisol and growth hormone stimulate gluconeogenesis. This causes hyperglycemia between 5:00 a.m. and 9:00 a.m. (dawn). Examination of blood glucose records for individuals who have high glucose levels at awakening may identify this event. It will need to be distinguished from another condition, referred to as rebound effect. This refers to an elevation in blood glucose as a reaction to previous low blood glucose levels during the night. To correct these events, bedtime snacks or insulin regimens will be adjusted. These conditions may occur in either T1 or T2DM.

Answer to Question 2

d